Question about Hansol 501 P Monitor

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Hansol MSA B19BF

Hi,

LCD monitor power button works fine, green lite is on and the
screen come on for second and goes black.
It was disconnected for 2 days and today I hooked it up and it
worked all day till about an hour ago and it is doing the same
thing again,
Any Ideas? It was build in July 2004.
The monitor looks just like new, such a waste.
Please help

Thanks for your time.

Andrew S.

Posted by on

2 Suggested Answers

Slinteriors
  • 8617 Answers

SOURCE: Hansol H950 19" LCD Monitor

Some of those monitors have had a problem where the large HDMI cable attaches to the back of the monitor. Try inserting the HDMI cable then instead of tightening the screw supports power up the monitor and wiggle it slightly if the monitor works then the problem is in the connector and may need to be resolderd on the inside. have you tried using another HDMI cable to rule out that the cable itself isnt defective?

Posted on Apr 07, 2008

budmrtn
  • 11361 Answers

SOURCE: HANSOL MODEL H750 MONITOR. WHEN I TURN POWER ON,

If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Posted on Jul 15, 2010

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If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

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Hello,

The problem on your monitor is a bad power supply. We you can solder you should be able to repair it. If you check our site at :
www.ccl-la.com/badcaps.htm We have a monitor repair section with dis-assembly guides and repair procedures. I will post a Hanns-g guide tonight. This will show how to open and repair the monitor. We also have a repair parts kit available. If you don't want to do the repair yourself then we can do it for you, just email me if you have questions or wan tus to do the repair for ou.

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1 Answer

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The backlight power supply in the H950 series suffers from a manufacturing defect. Hansol might replace the unit even if it's not covered by warranty anymore. Contact them.

Otherwise (and if you have electronics skills), replace the electrolytic caps in the monitor's power supply. Take proper high voltage precautions!
  • Disconnect mains
  • Wait at least one day for caps to discharge a bit
  • Remove monitor stand (four screws)
  • Put the monitor face-down on the table, plugs facing to you
  • Remove back cover (snap-in, difficult to open without minor damage) - be cautious: front buttons are connected using a rather short cable, do NOT try to remove front cover
  • Remove EMV casing screws (four screws) and ground wire
  • Disconnect CCFL tubes (four connectors), noting connector orientation
  • Disconnect front buttons pcb
  • Lift EMV casing side facing to you
  • Disconnect power supply board (left) from signal board
  • Unscrew/remove power supply board - caution: C12 is likely to store mains voltage even after days!
  • Replace caps (C34 and C66 are likely failure candidates for IPHS19-S rev1.2 boards; you might also replace C31, C32, and C35 while you are at it) - higher voltage and temperature rating are okay, capacity has to match
  • Assemble everything again

Nov 10, 2008 | Hansol H950 19" LCD Monitor

2 Answers

H950


The backlight power supply in the H950 series suffers from a manufacturing defect. Hansol might replace the unit even if it's not covered by warranty anymore. Contact them.

Otherwise (and if you have electronics skills), replace the electrolytic caps in the monitor's power supply. Take proper high voltage precautions!
  • Disconnect mains
  • Wait at least one day for caps to discharge a bit
  • Remove monitor stand (four screws)
  • Put the monitor face-down on the table, plugs facing to you
  • Remove back cover (snap-in, difficult to open without minor damage) - be cautious: front buttons are connected using a rather short cable, do NOT try to remove front cover
  • Remove EMV casing screws (four screws) and ground wire
  • Disconnect CCFL tubes (four connectors), noting connector orientation
  • Disconnect front buttons pcb
  • Lift EMV casing side facing to you
  • Disconnect power supply board (left) from signal board
  • Unscrew/remove power supply board - caution: C12 is likely to store mains voltage even after days!
  • Replace caps (C34 and C66 are likely failure candidates for IPHS19-S rev1.2 boards; you might also replace C31, C32, and C35 while you are at it) - higher voltage and temperature rating are okay, capacity has to match
  • Assemble everything again

Nov 10, 2008 | Hansol H950 19" LCD Monitor

1 Answer

Hansol H950


The backlight power supply in the H950 series suffers from a manufacturing defect. Hansol might replace the unit even if it's not covered by warranty anymore. Contact them.

Otherwise (and if you have electronics skills), replace the electrolytic caps in the monitor's power supply. Take proper high voltage precautions!
  • Disconnect mains
  • Wait at least one day for caps to discharge a bit
  • Remove monitor stand (four screws)
  • Put the monitor face-down on the table, plugs facing to you
  • Remove back cover (snap-in, difficult to open without minor damage) - be cautious: front buttons are connected using a rather short cable, do NOT try to remove front cover
  • Remove EMV casing screws (four screws) and ground wire
  • Disconnect CCFL tubes (four connectors), noting connector orientation
  • Disconnect front buttons pcb
  • Lift EMV casing side facing to you
  • Disconnect power supply board (left) from signal board
  • Unscrew/remove power supply board - caution: C12 is likely to store mains voltage even after days!
  • Replace caps (C34 and C66 are likely failure candidates for IPHS19-S rev1.2 boards; you might also replace C31, C32, and C35 while you are at it) - higher voltage and temperature rating are okay, capacity has to match
  • Assemble everything again

Jun 26, 2008 | Hansol H950 19" LCD Monitor

1 Answer

Hansol H950 19" LCD Monitor


Some of those monitors have had a problem where the large HDMI cable attaches to the back of the monitor. Try inserting the HDMI cable then instead of tightening the screw supports power up the monitor and wiggle it slightly if the monitor works then the problem is in the connector and may need to be resolderd on the inside. have you tried using another HDMI cable to rule out that the cable itself isnt defective?

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1 Answer

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Is this monitor and LCD flat Panel? If so this is due to a bad power supply, an inverter board going bad or LCD backlight bulb blown. When the backlight goes bad it gets just enough power to start up, but when it is on for a long period of time it goes black because the bulb is not stable enough to hold the charge because it is going bad. These bulbs can be changed, but they also can be costly!

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